How to Assemble a New Road Bike

Perfect for visual learners Step-by-step tutorial demonstrate how to easily assemble our HASA Road Bike (R4-11) by yourself.

Prepare Jobs
For this job you’ll need several tools. Ideally you should have a repair stand. Other necessary tools include wire cutters, a set of metric allen keys, a pedal wrench and an air pump.

Step 1
  • Cut the cable tires for the wheels. Note: Please take the wheel out of the crankset arm with care.

  • Cut the cable tie for the seatpost. 

Step 2
  • Insert the seatpost into the seat tube. Use 4mm Allen key to tight the seat clamp.
  • Clamp the bike onto a bicycle repair stand
Step 3
  • Use 4 mm Allen key  to remove the stem cap and place the handlebar  into the place

  • Use 4 mm Allen key to tight the bolts. Note: 4 bolts need to be evenly tight.

  • Adjust the handlebar to your favourite angle

Step 4
  • Remove all protectors off the bike
Step 5
  • Place the rear brake cable housing into the cable holder on the frame

  • Pull the rear brake cable. Note: Please make sure the rear brake cable end in the right position in the lever. Test it by applying brake lever.

  • Place the front brake cable housing into the brake calliper holder and pull the brake cable

Step 6
  • Apply some grease on the front wheel skewer

  • Inter the skewer into front wheel. Note: there are two springs  one for right, the other  one for left

  • Please see the picture for  spring position

Step 7
  • Place the front wheel into fork

  • Please make sure the wheel is the centre of the fork than close the quick release lever to secure the wheel.

Step 8 (Adjust the front brake)
  • Insert the front brake cable holder on the calliper as the picture

  • Holder the brake calliper and pull the cable, then use 5mm Allen key to secure the cable once it reaches perfect position

  • Tight the bolt to secure the brake cable

  • Close the brake tension adjustment lever

  • Adjust the brake pads height and make sure the pads could be applied on the wheel’s braking surface. Then leave reasonable extra and cut the brake cable using a cable cutter. Note: Please do not cut too short, you might need to re-assemble the brake cable in the future.

  • Squeeze the cable end on the brake cable

Step 9(Rear Brake Adjustment)
  • Insert the rear brake cable into the holder (same as front)

  • Adjust the brake pads height using 4mm Allen key and make sure the pads could be applied on the wheel’s braking surface

  • Squeeze the cable end on the brake cable

  •  Leave a bit extra for future use

Step 10 (Pedals installing)
  • Pedals have different thread. Check the mark on the axle “L” means left pedal, “R” means right pedal. Note: Drive side is right, non drive side is left. Apply some grease on the pedal axle

  • Turn the right pedal axle clockwise by hand

  • Lock the axle using a 15mm pedal wrench. Note: Please do not scratch the painting of the crank arm. Reasonably tight, if too loose, the axle would move then potentially would damage the thread of the crank arm. And warranty will not cover that.

  •  Left pedal installing by turning the axle counter clockwise by hand

  • Lock the axle using a 15mm pedal wrench

Step 11(Adjust the rear derailleur)
  • To adjust the rear derailleur, it could be hard if you do not have the experience.

  • Cut the cable and leave a bit extra. Squeeze the cable end on the cable

Step 12

  • Adjust the alignment of the rear derailleur (Please see the video)

  • Note: before you adjust cables tension for the front and rear derailleur, you need to apply shifter levers to make sure the cables are in loose position. 

Step 13
  • 5mm Allen key to tight the top lock first. Note: please do not over tight, it may damage the bearing inside.

  • Adjust the handlebar angle paralleling to the front wheel and  Tight the side bolts to lock the stem on the fork steerer

  • Pump the tyre using compatible air pump for Presta (French Type) valve. Note: You need to unscrew the valve cap before you pump it.

  • Check the Max. PSI on the side of tyre, normally Max. 120PSI

  • After pump up to the right pressure, please screw the valve cap to avoid air leaking

  • Adjust the seat height and position


Now you can enjoy the riding!



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